Number Operations & Arithmetic Flashcards
7 cards from real LLN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Number Operations & Arithmetic flashcards as text
A checking account has $250, and a check for $310 is cashed. What is the new balance?
Answer: −$60
250 − 310 = −60, so the account is overdrawn by $60.
What is 2³ + 3²?
Answer: 17
2³ = 8 and 3² = 9, so 8 + 9 = 17.
A 3-pound bag of apples costs $5.40. What is the price per pound?
Answer: $1.80
$5.40 ÷ 3 = $1.80 per pound.
What is 47,862 rounded to the nearest thousand?
Answer: 48,000
The hundreds digit is 8 (5 or more), so 47,862 rounds up to 48,000.
A worker earns $16 per hour, works 38 hours, and has a $45 deduction taken out. What is the take-home pay?
Answer: $563
16 × 38 = $608, and $608 − $45 = $563.
One bus leaves every 12 minutes and another every 18 minutes. If both leave at 8:00, how many minutes until they next leave together?
Answer: 36
The least common multiple of 12 and 18 is 36.
Using the distributive property, what is 25 × 104?
Answer: 2,600
25 × 100 + 25 × 4 = 2,500 + 100 = 2,600.
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